I lived right beside this place earlier in the year, and went there often. Motta is has some great little desserts, and affordable take-away food (pizza trio combo with rapini salad was great for a night in). The pizza itself isn't actually that good in my opinion, but despite the name, I think a lot of people go there for their other foods. It's a good, affordable place to pop into if you need something to bring to a dinner party but didn't have time to prepare anything.
The one thing I found Motta did very poorly was the all you can eat pizza party. We went one night when it wasn't too busy, but they only came around with pizza twice. It was like they'd chosen to ignore us as the waitress disappeared completely, and when we went up to ask what was going on there was just a cold tray of old pizza sitting on the counter. This was our only eat-in experience, so I'm guessing we just went on a bad night. Still, I wouldn't go there on a date night, as the ambiance isn't particularly warm.